Xinhua: China’s installed wind power capacity that transmits power into the national electricity grid rose 11.81 million kilowatts in the first half of this year, doubling the figure of a year earlier, an industry expert told Xinhua over the weekend. Shu Yinbiao, vice general manager of the State Grid Corporation, said the installed wind power capacity soared by 101 percent year on year by the end of June, showing the country’s strengthened efforts on using renewable energy. Shu …